CN104270724A - Method and device for adjusting multicast physical sending rate - Google Patents
Method and device for adjusting multicast physical sending rate Download PDFInfo
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- CN104270724A CN104270724A CN201410484406.1A CN201410484406A CN104270724A CN 104270724 A CN104270724 A CN 104270724A CN 201410484406 A CN201410484406 A CN 201410484406A CN 104270724 A CN104270724 A CN 104270724A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
Abstract
The invention relates to a method and device for adjusting a multicast physical sending rate. The method comprises the following steps that a plurality of multicast physical sending rates and a plurality of multicast packet loss probability threshold value intervals are configured in advance; statistical information of all target terminals of the same multicast stream for receiving the multicast stream during the first preset time is obtained, and the packet loss probability from the multicast stream to at least two target terminals is obtained according to the obtained statistical information of the at least two target terminals; the multicast physical sending rate of the multicast stream is adjusted according to the multicast packet loss probability threshold value interval of the obtained maximum packet loss probability and the pre-configured multicast physical sending rates, and the multicast stream is sent according to the adjusted multicast physical sending rate within the second preset time. According to the adjusting mode of the multicast physical sending rate, the transmission success rate of the multicast stream can be improved.
Description
Technical field
The present invention relates to network communication field technology, particularly relate to method of adjustment and the device of multicast physics transmission rate.
Background technology
WLAN (wireless local area network) (Wireless Local Area Networks, WLAN) as a kind of access technology of the network terminal, for providing great convenience property of user's access, the application of WLAN (wireless local area network) comprises wireless office, wireless teaching, Internet of Things, wireless medical etc.In multicast network, if a sender transmits identical data to multiple recipient simultaneously, then only need copy a identical packet, multicast (Multicast) technology improves the transmission efficiency of network data, decreases backbone network and occurs congested possibility.
As everyone knows, the message transmissions in WLAN (wireless local area network) is owing to being subject to the impact of the factors such as signal attenuation, conflict, interference, and the mortality of message transmissions will far away higher than cable network.In the transmission mechanism of clean culture (Unicast) message, wlan standard devise response and retransmission mechanism to improve the transmission success rate of unicast message.But for multicast message (being also referred to as multicast data flow) and broadcasting packet, because the object terminal receiving these messages is a colony, so response and retransmission mechanism cannot be designed, this just easily causes the transmission success rate of these messages not high, and then brings difficulty to Streaming Media etc. in the application that wireless local is online.
In addition, in wlan standard, each physical mechanism all devises multiple physics transmission rate.Wherein each physics transmission rate determined by factors such as frame format, encoding mechanism, modulation system, error correcting system and frequency ranges, these factors also affect the repellence of WLAN signal to factors such as decay, interference, that is the transmission success rate of multicast message is affected to a certain extent, so the physics transmission rate of dynamic conditioning multicast message is very important.
In prior art, the method for the physics transmission rate of comparatively typical dynamic conditioning multicast message is as follows: assumed wireless access point (Access Point, AP) certain multicast to be sent and flow to one group of object wireless terminal (Station, STA), then AP obtains self unicast physical transmission rate to all object STA from local data base, and the multicast physics transmission rate of this multicast data flow is set to the minimum transmission rate in these unicast physical transmission rates.When the unicast physical transmission rate of AP to some object STA changes, then need the multicast transmission rate resetting this multicast data flow.
But, the multicast physics transmission rate using above-mentioned adjustment mode to obtain is not necessarily most suitable, because the selection algorithm of unicast physical transmission rate is in a frame process of transmitting, can only select the transmission rate of minority to attempt to send this frame, the easy like this transmission rate jump amplitude that causes is excessive.For 802.11g, suppose that AP is in certain frame process of transmitting of certain object STA, transmission rate selection algorithm have selected 4 transmission rates to be attempted to send this frame, suppose that these 4 transmission rates are 54Mpbs respectively, 36Mbps, 12Mbps, 1Mbps, as use 54Mbps, 36Mbps, 12Mbps all sends unsuccessful, and when using 1Mbps to send successfully, the unicast physical transmission rate of AP to this object STA is 1Mbps, now, the multicast physics transmission rate of this multicast data flow can be adjusted to 1Mbps by AP, if the multicast physics transmission rate sending this multicast data flow last time is 36Mbps, so just, cause the hopping amplitude of multicast physics transmission rate excessive, still there is the problem that multicast data flow transmission success rate is lower.
Summary of the invention
The object of the present invention is to provide a kind of method of adjustment and device of multicast physics transmission rate, cause to solve existing multicast physics transmission rate method of adjustment the problem that multicast data flow transmission success rate is lower.
One of for achieving the above object, the method for adjustment of multicast physics transmission rate provided by the present invention, the method comprises the steps:
S1, pre-configured multiple multicast physics transmission rate and multiple multicast packet loss rate threshold interval;
S2, each object terminal obtaining same multicast data flow receives the statistical information of this multicast data flow in the first Preset Time, and according to the statistical information of at least two object terminals obtained, obtains the packet loss that this multicast flows at least two object terminals;
S3, multicast packet loss rate threshold interval residing for the maximum packet loss obtained and pre-configured multiple multicast physics transmission rates, adjustment sends the multicast physics transmission rate of this multicast data flow, and sends this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time.
For realizing another object of foregoing invention, the adjusting device of multicast physics transmission rate provided by the present invention, this device comprises as lower unit:
Dispensing unit, for pre-configured multiple multicast physics transmission rate and multiple multicast packet loss rate threshold interval;
Acquiring unit, each object terminal for obtaining same multicast data flow receives the statistical information of this multicast data flow in the first Preset Time, and according to the statistical information of at least two object terminals obtained, obtains the packet loss that this multicast flows at least two object terminals;
Adjustment transmitting element, for the multicast packet loss rate threshold interval residing for the maximum packet loss obtained and pre-configured multiple multicast physics transmission rates, adjustment sends the multicast physics transmission rate of this multicast data flow, and sends this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time.
Compared to prior art, in the method for adjustment of multicast physics transmission rate of the present invention and device, by pre-configured multiple multicast physics transmission rate and multiple multicast packet loss rate threshold interval, after on the multicast physics transmission rate multicast that same multicast data flow is preset according to certain to multiple object terminal, correspondingly get the statistical information of this multicast data flow of reception that all object terminals are fed back in the first Preset Time, and based on the statistical information of at least two object terminals, obtain the packet loss that this multicast flows at least two object terminals, then, again according to the situation of maximum packet loss place threshold interval, with the multicast physics transmission rate pre-set, adjustment current multicast physics transmission rate, and this multicast data flow is sent according to the multicast physics transmission rate after adjustment in the second Preset Time.
The present invention is by regularly learning that the reception condition of multicast data flow obtains maximum packet loss, the real-time adjustment of multicast physics transmission rate is realized according to maximum packet loss, because the gap of the maximum packet loss in different time sections can not be larger, so the saltus step of the multicast physics transmission rate of adjustment front and back is also little, this provides for improved the transmission success rate of multicast data flow.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method for adjustment of multicast physics transmission rate in the specific embodiment of the invention;
Fig. 2 is the realization flow figure configuring multicast physics transmission rate and multicast packet loss rate threshold interval in the preferred embodiment of the invention;
Fig. 3 is the realization flow figure that in the preferred embodiment of the invention, adjustment sends the multicast physics transmission rate of multicast data flow;
Fig. 4 is the structural representation of the adjusting device of multicast physics transmission rate in the specific embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment also with reference to accompanying drawing, the present invention is described in more detail.Should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
As shown in Figure 1, the method for adjustment of multicast physics transmission rate provided by the invention, is applied in wlan network, can be performed, specifically comprise the following steps by AP:
S1, pre-configured multiple multicast physics transmission rate and multiple multicast packet loss rate threshold interval.
In this step, as shown in Figure 2, this step can comprise the steps:
S11, pre-configured multiple multicast physics transmission rate, and according to speed speed, multiple multicast physics transmission rate is sorted.
Such as, pre-configured multicast physics transmission rate is T
1~ T
x, by its according to speed from slow to F.F. line ordering, i.e. T
1< T
2< ... < T
x, x > 2.
S12, the pre-configured upshift threshold interval about multicast packet loss rate, downshift threshold interval and stable threshold are interval.
Here, the maximum endpoint value in above-mentioned upshift threshold interval is less than the smallest end point value in downshift threshold interval, and aforementioned stable threshold interval is between upshift threshold interval and downshift threshold interval.
Such as, suppose that upshift threshold interval is [a, b], downshift threshold interval is [c, d], stable threshold interval is (b, c), the maximum endpoint value b wherein upshiftd in threshold interval [a, b] is less than the smallest end point value c in downshift threshold interval [c, d], and ensure stable threshold interval (b, c) upshift threshold interval [a, b], downshift threshold interval [c, d] is just between the two.
It is worth mentioning that, in this article, " upshift " may be interpreted as and current multicast physics transmission rate is adjusted to transmission rate faster, and " downshift " then may be interpreted as and current multicast physics transmission rate is adjusted to slower transmission rate.The concrete form of the multicast packet loss rate threshold interval that the present invention is pre-configured and number are not limited to above embodiment, for those of ordinary skills, can expect other feasible modes easily, therefore no longer enumerate at this.
It should be noted that, the respective threshold of the multiple multicast physics transmission rate configured in above-mentioned configuration flow and multicast packet loss rate is interval all to be obtained according to reality test experience, concrete configuration how many multicast physics transmission rates, and configure how many multicast packet loss rate threshold intervals, all can arrange according to the actual conditions of multicast network.In an embodiment of the present invention, the gap between multiple multicast physics transmission rates of above-mentioned configuration can not be larger.
In addition, when the multicast group that different multicast data flows is corresponding is different, the follow-up adjustment that the respective threshold of multiple multicast physics transmission rate of above-mentioned configuration and multicast packet loss rate interval all can be used to carry out multicast physics transmission rate.For certain multicast data flow, even if there is situation about increasing in the object terminal of this multicast data flow within certain period, namely, there is new object terminal to join in multicast group corresponding to this multicast data flow, the respective threshold of multiple multicast physics transmission rate of above-mentioned configuration and multicast packet loss rate interval still can be used to carry out the adjustment of multicast physics transmission rate.
S2, each object terminal obtaining same multicast data flow receives the statistical information of this multicast data flow in the first Preset Time, and according to the statistical information of object terminal obtained, obtains the packet loss that this multicast flows to object terminal.
For AP, before this step of execution, this multicast data flow can be sent to corresponding object terminal according to the multicast physics transmission rate preset, afterwards, when the first Preset Time arrives, the statistical information of these object terminals can be obtained, so that follow-up AP obtains according to statistical information the packet loss that this multicast flows to part object terminal or all object terminals further, and then suitably adjust current multicast physics transmission rate (the multicast physics transmission rate namely preset), can ensure that the multicast physics transmission rate in subsequent time period after Use Adjustment sends this multicast data flow, to improve multicast data flow transmission success rate.Here, in fact statistical information refers to the reception condition information that these object terminals in the first Preset Time receive how many these multicast data flows.
It should be noted that, in above-mentioned steps S2, AP can carry out the statistical information of fetching portion or whole object terminal by multiple obtain manner, such as, AP directly can obtain corresponding statistical information from these object end, in this case, after this multicast data flow is multicast to corresponding object terminal by AP, can require that these object terminals receive the statistical information of how many these multicast data flows separately to oneself feedback when the first Preset Time arrives.Certainly, AP also can obtain by means of other auxiliary equipment, and the present invention does not limit the concrete obtain manner obtaining statistical information.
Further, in step s 2, every bar statistical information at least comprises corresponding object terminal in the first preset time t
1inside receive the number of this multicast data flow.
In this case, the present invention calculates by following manner the packet loss that this multicast flows at least two object terminals: according to the total number sending this multicast data flow in the first Preset Time, with the number of this multicast data flow that the statistical information from least two object terminals comprises, calculate the packet loss that this multicast flows at least two object terminals.
Such as, suppose that AP needs to obtain the packet loss that this multicast flows to all object terminals, in this case, AP obtains this multicast, and to flow to the concrete computational process of the packet loss of some object terminals as follows: according to the total number sending this multicast data flow in the first Preset Time, with the number of this multicast data flow that the statistical information from this object terminal comprises, the number that this object terminal does not during this period of time receive this multicast data flow can be calculated; Then, the number this object terminal calculated not being received this multicast data flow carries out ratio computing with the total number sending this multicast data flow, can obtain the packet loss that this multicast flows to this object terminal.Similarly, AP can calculate the packet loss that this multicast flows to other object terminals, and then obtains the packet loss that this multicast flows to all object terminals.
Certainly, above-mentionedly only list by AP to calculate the situation that this multicast flows to the packet loss of corresponding object terminal, in other embodiments, also can calculate by other equipment or object terminal the packet loss that this multicast flows to corresponding object terminal.Such as, after AP gets statistical information, self is during this period of time sent total number of this multicast data flow, inform object terminal, by object terminal according to total number of this multicast data flow and the number self receiving this multicast data flow, calculate the number that self does not receive this multicast data flow, afterwards, the total number according to the number He this multicast data flow that self do not receive this multicast data flow calculates corresponding packet loss.
Further, in the embodiment of the present invention, AP is when receiving the statistical information of object terminal, part object terminal and this AP may be had at a distance of distant, calculate corresponding packet loss to AP at a distance of the statistical information of distant one or more object terminals according to these if follow-up, regulating the speed of adjustment multicast physics transmission rate may be affected.Given this, in order to realize the optimum apjustment of multicast physics transmission rate, can according to the object terminal chosen specific tactful multiple object terminals corresponding from multicast data flow in particular range, and carry out the calculating of corresponding packet loss based on the statistical information that those object terminals are fed back, the follow-up adjustment carrying out multicast physics transmission rate.
Such as, AP can obtain by following manner the packet loss that this multicast flows at least two object terminals: received signal strength indicator (the Receive Signal Strength Indicator obtaining each object terminal, RSSI) value, and from each object terminal, select RSSI value to be greater than the object terminal of setting threshold; Then, according to the total number sending this multicast data flow in the first Preset Time, and the number of this multicast data flow comprised from the statistical information of the object terminal selected, calculate the packet loss that this multicast flows to the object terminal selected.
Again such as, AP can also obtain by following manner the packet loss that this multicast flows at least two object terminals: the unicast message retransmission rate obtaining each object terminal, and from each object terminal, select unicast message retransmission rate to be less than the object terminal of setting threshold; Then, according to the total number sending this multicast data flow in the first Preset Time, and the number of this multicast data flow comprised from the statistical information of the object terminal selected, calculate the packet loss that this multicast flows to the object terminal selected.
By above technical scheme, the present invention can choose the object terminal of comparatively suitable (as distance AP is nearer) as data analysis object from all object terminals, thus the speed obtaining packet loss can be improved, realize the rapid adjustment of multicast physics transmission rate.
Certainly, the embodiment of the present invention can also select object terminal by other means, will not enumerate at this.
S3, multicast packet loss rate threshold interval residing for the maximum packet loss obtained and pre-configured multiple multicast physics transmission rates, adjustment sends the multicast physics transmission rate of this multicast data flow, and sends this multicast data flow according to the multicast physics transmission rate after adjustment in the second Preset Time.
In the embodiment of the present invention, after the multiple packet loss got by above step S2, then can by comparing the maximum packet loss drawn in multiple packet loss, such as, accessed packet loss comprises PLR
1, PLR
2, PLR
3, wherein, PLR
1< PLR
2< PLR
3, then show that the maximum packet loss got is PLR
3.
Getting maximum packet loss PLR
3after, then search this PLR
3present multicast packet loss rate threshold interval, such as: suppose that pre-configured multicast packet loss rate threshold interval comprises the first interval (a, b) He the second interval (c, d), wherein, the mode of the mode of the multicast data flow speed adjustment corresponding to the first interval (a, b) and the multicast data flow speed adjustment corresponding to the second interval (c, d) is not quite similar.So the multicast physics transmission rate adjustable strategies in the present embodiment can be as follows: if PLR
3fall in the first interval (a, b), then carry out the adjustment of multicast physics transmission rate according to the first speed adjustment mode; And if PLR
3fall in the second interval (c, d), then carry out the adjustment of multicast physics transmission rate according to the second speed adjustment mode.
Particularly, the first speed adjustment mode can be choose certain transmission rate faster than current multicast physics transmission rate from pre-configured multiple multicast physics transmission rates, and the second speed adjustment mode can be choose certain transmission rate slower than present physical transmission rate from pre-configured multiple multicast physics transmission rates, in ensuing second preset time t
2in, then continue to send this multicast data flow according to the multicast physics transmission rate after adjustment, thus realize the dynamic conditioning of multicast physics transmission rate.
In another embodiment of the present invention, based on the basis of Fig. 2, as shown in Figure 3, step S3 of the present invention can also be realized by following steps:
S30, by comparing the maximum packet loss PLR drawn in multiple packet loss
maxand judge this packet loss threshold interval at maximum packet loss;
S31, if PLR
maxbe in upshift threshold interval [a, b], then the multicast physics transmission rate that Selection radio current multicast physics transmission rate is fast from the multiple multicast physics transmission rates after sequence, and in the second preset time t
2in send this multicast data flow according to the multicast physics transmission rate selected.
Such as, this multicast data flow is at t
1interior multicast physics transmission rate is T
2, then now can from multiple pre-configured multicast physics transmission rate Selection radio T
2fast multicast physics transmission rate, such as T
3or T
4, its speed lifting amplitude is also unrestricted, can be configured according to the actual requirements.
S32, if PLR
maxbe in downshift threshold interval [c, d], then the multicast physics transmission rate that Selection radio current multicast physics transmission rate is slow from the multiple multicast physics transmission rates after sequence, and at t
2in send this multicast data flow according to the multicast physics transmission rate selected.
Such as, this multicast data flow is at t
1interior multicast physics transmission rate is T
4, then now can from multiple pre-configured multicast physics transmission rate Selection radio T
4slow multicast physics transmission rate, such as T
3or T
2, its rate reduction amplitude is unrestricted, can be configured according to the actual requirements.
S33, if PLR
maxbe in stable threshold interval (b, c), then remain on t
1interior multicast physics transmission rate is constant, and at t
2interior continuation sends this multicast data flow according to this multicast physics transmission rate.
Further, in order to realize the dynamic conditioning of multicast physics transmission rate in multicast network better, in the method, step S12 (step of pre-configured multicast packet loss rate threshold interval) is also by realizing with under type:
The threshold interval [a, b] that will upshift at least is divided into the first upshift subinterval [a, e] and the second upshift subinterval (e, b], and the first upshift subinterval [a, e] and the second upshift subinterval (e, b] there is different speed to upshift amplitude;
The threshold interval [c, d] that will downshift at least is divided into the first downshift subinterval [c, f] and the second downshift subinterval (f, d], and the first downshift subinterval [c, f] and the second downshift subinterval (f, d] there is different speed to downshift amplitude.
Certainly, other execution modes of the present invention can according to the actual requirements, upshift threshold interval and downshift threshold interval are subdivided into the more subinterval of number, and the speed adjusting range in each subinterval be all different.
Based on above each divided threshold interval, in the method, in step S3, multicast physics transmission rate adjustment process is specific as follows:
The first situation: if the maximum packet loss PLR obtained
maxbe in the first upshift subinterval [a, e], then in multiple multicast physics transmission rate, according to first rate upshift amplitude adjustment current multicast physics transmission rate, and at t
2according to adjustment after multicast physics transmission rate send this multicast data flow; If PLR
maxbe in the second upshift subinterval (e, b] in, then in multiple multicast physics transmission rate, according to the second speed upshift amplitude adjustment current multicast physics transmission rate, and at t
2according to adjustment after multicast physics transmission rate send this multicast data flow.
In this case, suppose that first rate upshift amplitude is two grades, the second speed upshift amplitude is third gear, at t
1interior multicast physics transmission rate is T
5if, PLR
maxbe in the first upshift subinterval [a, e], then current multicast physics transmission rate risen two grades to T
7if, PLR
maxbe in the second upshift subinterval (e, b] in, then current multicast physics transmission rate is risen two grades to T
8.
Second case: if PLR
maxbe in the first downshift subinterval [c, f], then in multiple multicast physics transmission rate, according to first rate downshift amplitude adjustment current multicast physics transmission rate, and at t
2according to adjustment after multicast physics transmission rate send this multicast data flow; If PLR
maxbe in the second downshift subinterval (f, d] in, then in multiple multicast physics transmission rate, according to the second speed downshift amplitude adjustment current multicast physics transmission rate, and at t
2according to adjustment after multicast physics transmission rate send this multicast data flow;
In this case, suppose that first rate downshift amplitude is third gear, the second speed downshift amplitude is fourth gear, at t
1interior multicast physics transmission rate is T
8if, PLR
maxbe in the first downshift subinterval [c, f], then current multicast physics transmission rate fallen third gear to T
5if, PLR
maxbe in the second downshift subinterval (f, d] in, then current multicast physics transmission rate fourth gear is fallen to T
4.
The third situation: if PLR
maxbe in stable threshold interval, then keep current multicast physics transmission rate constant, and at t
2in send this multicast data flow according to this multicast physics transmission rate.
Based on above adjustable strategies, if threshold interval [a will be upshiftd, b] be divided into the first upshift subinterval [a, h], second upshift subinterval (h, k] and the 3rd upshift subinterval (k, b], and the first upshift subinterval [a, h], second upshift subinterval (h, k], 3rd upshift subinterval (k, b] correspond respectively to different speed upshift amplitudes, suppose the first upshift subinterval [a, h] corresponding to speed promote amplitude be one grade, second upshift subinterval (h, k] corresponding to speed promote amplitude be two grades, 3rd upshift subinterval (k, b] corresponding to speed promote amplitude be third gear, then when maximum packet loss is in above different threshold interval, the transmission rate that is suitable for can be selected from pre-configured multiple multicast physics transmission rates according to corresponding lifting amplitude, to carry out the transmission of subsequent time period multicast data flow.In a word, multicast packet loss rate threshold interval configuration mode and speed adjusting range thereof are not limited to above various example, will not enumerate at this.
It is worth mentioning that, in other embodiments of the invention, also can limit the multicast physics transmission rate of this multicast data flow further according to other situations, as required, multicast physics transmission rate is not less than the bandwidth etc. of this multicast data flow.In addition, in order to monitor the statistical information of multicast data flow reception condition in multicast network of the present invention, and the cycle of multicast physics transmission rate dynamic conditioning can be arranged to fixed cycle (t
1=t
2) or not fixed cycle (t
1≠ t
2).
To sum up, the present invention is by regularly learning that the reception condition of multicast data flow obtains maximum packet loss, the real-time adjustment of multicast physics transmission rate is realized according to maximum packet loss, because the gap of the maximum packet loss in different time sections can not be larger, so the saltus step of the multicast physics transmission rate of adjustment front and back is also little, this provides for improved the transmission success rate of multicast data flow.
Based on same inventive concept, the present invention also provides a kind of adjusting device of multicast physics transmission rate, and as shown in Figure 4, this device 100 comprises dispensing unit 10, acquiring unit 20 and adjustment transmitting element 30.
Wherein, dispensing unit 10 is for pre-configured multiple multicast physics transmission rate and multiple multicast packet loss rate threshold interval.
Acquiring unit 20 receives the statistical information of this multicast data flow for each object terminal obtaining same multicast data flow in the first Preset Time, and according to the statistical information of at least two object terminals obtained, obtains the packet loss that this multicast flows at least two object terminals.
Adjustment transmitting element 30 is for the multicast packet loss rate threshold interval residing for the maximum packet loss obtained and pre-configured multiple multicast physics transmission rates, adjustment sends the multicast physics transmission rate of this multicast data flow, and sends this multicast data flow according to the multicast physics transmission rate after adjustment in the second Preset Time.
In the preferred embodiment of the invention, dispensing unit 10 comprises rate configuration unit 11 and threshold value dispensing unit 12.Multiple multicast physics transmission rate sorts for pre-configured multiple multicast physics transmission rate and according to the speed of speed by rate configuration unit 11.Threshold value dispensing unit 12 is interval for configuring about the upshift threshold interval of multicast packet loss rate, downshift threshold interval and stable threshold.Here, the maximum endpoint value of upshift threshold interval is less than the smallest end point value in downshift threshold interval, and stable threshold interval is between upshift threshold interval and downshift threshold interval.
In the preferred embodiment of the invention, adjustment transmitting element 30 specifically for:
If the maximum packet loss PLR obtained
maxbe in upshift threshold interval, the multicast physics transmission rate that then Selection radio current multicast physics transmission rate is fast from the multiple multicast physics transmission rates after sequence, and this multicast data flow is sent according to the multicast physics transmission rate selected in the second Preset Time;
If PLR
maxbe in downshift threshold interval, the multicast physics transmission rate that then Selection radio current multicast physics transmission rate is slow from the multiple multicast physics transmission rates after sequence, and this multicast data flow is sent according to the multicast physics transmission rate selected in the second Preset Time;
If PLR
maxbe in stable threshold interval, then keep current multicast physics transmission rate constant, and send this multicast data flow according to current multicast physics transmission rate in the second Preset Time.
In the preferred embodiment of the invention, threshold value dispensing unit 12 specifically for: upshift threshold interval is at least divided into the first upshift subinterval and the second upshift subinterval, the first upshift subinterval and the second upshift subinterval have different speed upshift amplitude; Downshift threshold interval is at least divided into the first downshift subinterval and the second downshift subinterval, the first downshift subinterval and the second downshift subinterval have different speed downshift amplitudes;
Adjustment transmitting element 30 specifically for: if obtain maximum packet loss PLR
maxbe in the first upshift subinterval, then, in multiple multicast physics transmission rate, according to first rate upshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in the second Preset Time; If PLR
maxbe in the second upshift subinterval, then, in multiple multicast physics transmission rate, according to the second speed upshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in the second Preset Time;
If PLR
maxbe in the first downshift subinterval, then, in multiple multicast physics transmission rate, according to first rate downshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in the second Preset Time; If PLR
maxbe in the second downshift subinterval, then, in multiple multicast physics transmission rate, according to the second speed downshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in the second Preset Time;
If PLR
maxbe in stable threshold interval, then keep current multicast physics transmission rate constant, and send this multicast data flow according to current multicast physics transmission rate in the second Preset Time.
In the preferred embodiment of the invention, every bar statistical information that acquiring unit 20 obtains comprises the number that corresponding object terminal receives this multicast data flow in the first Preset Time;
Acquiring unit 20 specifically for: according to the total number sending this multicast data flow in the first Preset Time, with the number of this multicast data flow comprised from the statistical information of at least two object terminals, calculate the packet loss that this multicast flows at least two object terminals.
In the preferred embodiment of the invention, acquiring unit 20 specifically for:
Obtain the received signal strength indicator RSSI value of each object terminal, and from each object terminal, select RSSI value to be greater than the object terminal of setting threshold; Or, obtain the unicast stream retransmission rate of each object terminal, and from each object terminal, select unicast stream retransmission rate to be less than the object terminal of setting threshold;
According to the total number sending this multicast data flow in the first Preset Time, and the number of this multicast data flow comprised from the statistical information of the object terminal selected, calculate the packet loss that this multicast flows to the object terminal selected.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment and unit can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, this program can be stored in a computer-readable recording medium, and storage medium can comprise memory, disk or CD etc.
Should be understood that, above-mentioned specific embodiment of the present invention only for exemplary illustration or explain principle of the present invention, and is not construed as limiting the invention.Therefore, any amendment made when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.In addition, claims of the present invention be intended to contain fall into claims scope and border or this scope and border equivalents in whole change and modification.
Although describe embodiments of the invention in detail, it should be understood that when without departing from the spirit and scope of the present invention, various change, replacement and change can be made to embodiments of the invention.
Claims (12)
1. a method of adjustment for multicast physics transmission rate, is characterized in that, comprising:
S1, pre-configured multiple multicast physics transmission rate and multiple multicast packet loss rate threshold interval;
S2, each object terminal obtaining same multicast data flow receives the statistical information of this multicast data flow in the first Preset Time, and according to the statistical information of at least two object terminals obtained, obtains the packet loss that this multicast flows at least two object terminals; And
S3, multicast packet loss rate threshold interval residing for the maximum packet loss obtained and pre-configured multiple multicast physics transmission rates, adjustment sends the multicast physics transmission rate of this multicast data flow, and sends this multicast data flow according to the multicast physics transmission rate after adjustment in the second Preset Time.
2. method according to claim 1, is characterized in that, in the method, step S1 specifically comprises:
S11, pre-configured multiple multicast physics transmission rate, and according to speed speed, described multiple multicast physics transmission rate is sorted;
S12, the pre-configured upshift threshold interval about multicast packet loss rate, downshift threshold interval and stable threshold are interval, maximum endpoint value in described upshift threshold interval is less than the smallest end point value in described downshift threshold interval, and described stable threshold interval is between described upshift threshold interval and described downshift threshold interval.
3. method according to claim 2, is characterized in that, in the method, step S3 specifically comprises:
If the maximum packet loss PLR obtained
maxbe in described upshift threshold interval, the multicast physics transmission rate that then Selection radio current multicast physics transmission rate is fast from the multiple multicast physics transmission rates after sequence, and this multicast data flow is sent according to the multicast physics transmission rate selected in described second Preset Time;
If PLR
maxbe in described downshift threshold interval, the multicast physics transmission rate that then Selection radio current multicast physics transmission rate is slow from the multiple multicast physics transmission rates after sequence, and this multicast data flow is sent according to the multicast physics transmission rate selected in described second Preset Time;
If PLR
maxbe in described stable threshold interval, then keep current multicast physics transmission rate constant, and send this multicast data flow according to current multicast physics transmission rate in described second Preset Time.
4. method according to claim 2, is characterized in that, in the method, step S12 specifically comprises:
Described upshift threshold interval is at least divided into the first upshift subinterval and the second upshift subinterval, described first upshift subinterval and described second upshift subinterval have different speed upshift amplitudes;
Described downshift threshold interval is at least divided into the first downshift subinterval and the second downshift subinterval, described first downshift subinterval and described second downshift subinterval have different speed downshift amplitudes;
In the method, step S3 specifically comprises:
If the maximum packet loss PLR obtained
maxbe in described first upshift subinterval, then in described multiple multicast physics transmission rate, according to first rate upshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time; If PLR
maxbe in described second upshift subinterval, then in described multiple multicast physics transmission rate, according to the second speed upshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time;
If PLR
maxbe in described first downshift subinterval, then in described multiple multicast physics transmission rate, according to first rate downshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time; If PLR
maxbe in described second downshift subinterval, then in described multiple multicast physics transmission rate, according to the second speed downshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time;
If PLR
maxbe in described stable threshold interval, then keep current multicast physics transmission rate constant, and send this multicast data flow according to current multicast physics transmission rate in described second Preset Time.
5. method according to any one of claim 1 to 4, is characterized in that, every bar statistical information comprises the number that corresponding object terminal receives this multicast data flow in the first Preset Time;
In the method, step S2 specifically comprises:
According to the total number sending this multicast data flow in described first Preset Time, and the number of this multicast data flow comprised from the statistical information of at least two object terminals, calculate the packet loss that this multicast flows at least two object terminals.
6. method according to claim 5, is characterized in that, in the method, step S2 specifically comprises:
Obtain the received signal strength indicator RSSI value of each object terminal, and from each object terminal, select RSSI value to be greater than the object terminal of setting threshold; Or, obtain the unicast stream retransmission rate of each object terminal, and from each object terminal, select unicast stream retransmission rate to be less than the object terminal of setting threshold;
According to the total number sending this multicast data flow in described first Preset Time, and the number of this multicast data flow comprised from the statistical information of the object terminal selected, calculate the packet loss that this multicast flows to the object terminal selected.
7. an adjusting device for multicast physics transmission rate, is characterized in that, this device comprises:
Dispensing unit, for pre-configured multiple multicast physics transmission rate and multiple multicast packet loss rate threshold interval;
Acquiring unit, each object terminal for obtaining same multicast data flow receives the statistical information of this multicast data flow in the first Preset Time, and according to the statistical information of at least two object terminals obtained, obtains the packet loss that this multicast flows at least two object terminals; And
Adjustment transmitting element, for the multicast packet loss rate threshold interval residing for the maximum packet loss obtained and pre-configured multiple multicast physics transmission rates, adjustment sends the multicast physics transmission rate of this multicast data flow, and sends this multicast data flow according to the multicast physics transmission rate after adjustment in the second Preset Time.
8. device according to claim 7, is characterized in that, described dispensing unit specifically comprises:
Rate configuration unit, for pre-configured multiple multicast physics transmission rate, and sorts described multiple multicast physics transmission rate according to speed speed;
Threshold value dispensing unit, interval for the pre-configured upshift threshold interval about multicast packet loss rate, downshift threshold interval and stable threshold, maximum endpoint value in described upshift threshold interval is less than the smallest end point value in described downshift threshold interval, and described stable threshold interval is between described upshift threshold interval and described downshift threshold interval.
9. device according to claim 8, is characterized in that, described adjustment transmitting element specifically for:
If the maximum packet loss PLR obtained
maxbe in described upshift threshold interval, the multicast physics transmission rate that then Selection radio current multicast physics transmission rate is fast from the multiple multicast physics transmission rates after sequence, and this multicast data flow is sent according to the multicast physics transmission rate selected in described second Preset Time;
If PLR
maxbe in described downshift threshold interval, the multicast physics transmission rate that then Selection radio current multicast physics transmission rate is slow from the multiple multicast physics transmission rates after sequence, and this multicast data flow is sent according to the multicast physics transmission rate selected in described second Preset Time;
If PLR
maxbe in described stable threshold interval, then keep current multicast physics transmission rate constant, and send this multicast data flow according to current multicast physics transmission rate in described second Preset Time.
10. device according to claim 8, is characterized in that, described threshold value dispensing unit specifically for:
Described upshift threshold interval is at least divided into the first upshift subinterval and the second upshift subinterval, described first upshift subinterval and described second upshift subinterval have different speed upshift amplitudes;
Described downshift threshold interval is at least divided into the first downshift subinterval and the second downshift subinterval, described first downshift subinterval and described second downshift subinterval have different speed downshift amplitudes;
Described adjustment transmitting element specifically for:
If the maximum packet loss PLR obtained
maxbe in described first upshift subinterval, then in described multiple multicast physics transmission rate, according to first rate upshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time; If PLR
maxbe in described second upshift subinterval, then in described multiple multicast physics transmission rate, according to the second speed upshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time;
If PLR
maxbe in described first downshift subinterval, then in described multiple multicast physics transmission rate, according to first rate downshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time; If PLR
maxbe in described second downshift subinterval, then in described multiple multicast physics transmission rate, according to the second speed downshift amplitude adjustment current multicast physics transmission rate, and send this multicast data flow according to the multicast physics transmission rate after adjustment in described second Preset Time;
If PLR
maxbe in described stable threshold interval, then keep current multicast physics transmission rate constant, and send this multicast data flow according to current multicast physics transmission rate in described second Preset Time.
11. devices according to any one of claim 7 to 10, is characterized in that, every bar statistical information that described acquiring unit obtains comprises the number that corresponding object terminal receives this multicast data flow in the first Preset Time;
Described acquiring unit specifically for: according to the total number sending this multicast data flow in described first Preset Time, with the number of this multicast data flow that the statistical information from least two object terminals comprises, calculate the packet loss that this multicast flows at least two object terminals.
12. devices according to claim 11, is characterized in that, described acquiring unit specifically for:
Obtain the received signal strength indicator RSSI value of each object terminal, and from each object terminal, select RSSI value to be greater than the object terminal of setting threshold; Or, obtain the unicast stream retransmission rate of each object terminal, and from each object terminal, select unicast stream retransmission rate to be less than the object terminal of setting threshold;
According to the total number sending this multicast data flow in described first Preset Time, and the number of this multicast data flow comprised from the statistical information of the object terminal selected, calculate the packet loss that this multicast flows to the object terminal selected.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897506A (en) * | 2016-03-31 | 2016-08-24 | 乐视控股（北京）有限公司 | Bandwidth estimation method and device |
| CN106911531A (en) * | 2017-01-10 | 2017-06-30 | 中国科学院信息工程研究所 | A kind of data packetloss rate statistical method of many distribution scenes |
| CN108924048A (en) * | 2018-06-26 | 2018-11-30 | 新华三技术有限公司 | A kind of routing file transmitting method, device and routing device |
| CN111601335A (en) * | 2020-04-22 | 2020-08-28 | 烽火通信科技股份有限公司 | Wireless network performance test method and wireless AP |
| CN115378832A (en) * | 2022-07-29 | 2022-11-22 | 北京奇艺世纪科技有限公司 | Congestion detection method and device, streaming media transmission system, electronic equipment and medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060221963A1 (en) * | 2005-03-30 | 2006-10-05 | Daigo Takayanagi | Information transmitting method and information transmitting system |
| JP2007150859A (en) * | 2005-11-29 | 2007-06-14 | Sharp Corp | Receiver, transmitter, communication system, control program of receiver and recording medium having control program of receiver recorded thereon |
| CN102137431A (en) * | 2010-01-21 | 2011-07-27 | 杭州华三通信技术有限公司 | Method, system and device for WLAN (Wireless Local Area Network) multicasting transmission |
| CN103888909A (en) * | 2014-03-26 | 2014-06-25 | 杭州华三通信技术有限公司 | Method and device for sending multicast flow in unicast mode |
-
2014
- 2014-09-19 CN CN201410484406.1A patent/CN104270724B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060221963A1 (en) * | 2005-03-30 | 2006-10-05 | Daigo Takayanagi | Information transmitting method and information transmitting system |
| JP2007150859A (en) * | 2005-11-29 | 2007-06-14 | Sharp Corp | Receiver, transmitter, communication system, control program of receiver and recording medium having control program of receiver recorded thereon |
| CN102137431A (en) * | 2010-01-21 | 2011-07-27 | 杭州华三通信技术有限公司 | Method, system and device for WLAN (Wireless Local Area Network) multicasting transmission |
| CN103888909A (en) * | 2014-03-26 | 2014-06-25 | 杭州华三通信技术有限公司 | Method and device for sending multicast flow in unicast mode |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897506A (en) * | 2016-03-31 | 2016-08-24 | 乐视控股（北京）有限公司 | Bandwidth estimation method and device |
| WO2017166493A1 (en) * | 2016-03-31 | 2017-10-05 | 乐视控股（北京）有限公司 | Bandwidth estimation method and device |
| CN106911531A (en) * | 2017-01-10 | 2017-06-30 | 中国科学院信息工程研究所 | A kind of data packetloss rate statistical method of many distribution scenes |
| CN108924048A (en) * | 2018-06-26 | 2018-11-30 | 新华三技术有限公司 | A kind of routing file transmitting method, device and routing device |
| CN108924048B (en) * | 2018-06-26 | 2021-08-24 | 新华三技术有限公司 | Routing message sending method and device and routing equipment |
| CN111601335A (en) * | 2020-04-22 | 2020-08-28 | 烽火通信科技股份有限公司 | Wireless network performance test method and wireless AP |
| CN111601335B (en) * | 2020-04-22 | 2022-04-26 | 烽火通信科技股份有限公司 | Wireless network performance test method and wireless AP |
| CN115378832A (en) * | 2022-07-29 | 2022-11-22 | 北京奇艺世纪科技有限公司 | Congestion detection method and device, streaming media transmission system, electronic equipment and medium |
| CN115378832B (en) * | 2022-07-29 | 2024-03-26 | 北京奇艺世纪科技有限公司 | Congestion detection method and device, stream media transmission system, electronic equipment and medium |
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|---|---|
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